Manuals / Panasonic / Household Appliance / Air Conditioner

Panasonic Indoor Unit Outdoor Unit CS-E9NKUAW CS-E12NKUAW CU-E9NKUA CU-E12NKUA Malfunction Caused

Models: Indoor Unit Outdoor Unit CS-E9NKUAW CS-E12NKUAW CU-E9NKUA CU-E12NKUA

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Page 52

CT defective

16.4.5H16 (Outdoor Current Transformer Open Circuit)

Malfunction Decision Conditions

A current transformer (CT) is detected by checking the compressor running frequency (≥ rated frequency) and CT detected input current (less than 0.65A) for continuously 20 seconds.

Malfunction Caused

CT defective

Outdoor PCB defective

Compressor defective (low compression)

Troubleshooting

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Image 52

Panasonic Indoor Unit Outdoor Unit CS-E9NKUAW CS-E12NKUAW CU-E9NKUA CU-E12NKUA Malfunction Decision Conditions

Contents

TABLE OF CONTENTS Indoor UnitOutdoor Unit CS-E9NKUAW17. Disassembly and Assembly Instructions Exploded View and Replacement Parts13. Operation Control For Multi Split Connection1. Safety Precautions 20.During pump down operation, stop the compressor before remove the refrigeration piping. Removal of refrigeration piping while compressor is operating and valves are opened condition will cause suck-inof air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc 2. Specification Type DRY BULB 3. Features šLong Installation PipingšEasy to use remote control šQuality Improvement šServiceability Improvement4.1Indoor Unit 4.2Outdoor Unit 4.3Remote Control 4. Location of Controls and Components5. Dimensions 5.1Indoor Unit5.2Outdoor Unit 6. Refrigeration Cycle Diagram 7. Block Diagram 8. Wiring Connection Diagram 8.1Indoor Unit8.2Outdoor Unit 9. Electronic Circuit Diagram 9.1Indoor Unit9.2Outdoor Unit 10.1Indoor Unit 10. Printed Circuit Board10.1.1Main Printed Circuit Board 10.1.2Power Printed Circuit Board 10.1.3Indicator Printed Circuit Board10.2Outdoor Unit 10.2.1Main Printed Circuit Board11. Installation Instruction 11.1.3Indoor/Outdoor Unit Installation Diagram11.1Select the Best Location 11.1.1Indoor Unit11.2.1How to Fix Installation Plate 11.2Indoor Unit11.2.3Indoor Unit Installation 11.2.3.1For the right rear piping11.2.3.2For the right bottom piping 11.2.3.3For the embedded piping11.2.4Connect the Cable to the Indoor Unit 11.2.5Wiring Stripping and connecting requirement 11.2.5.1Cutting and flaring the piping11.3.1Install the Outdoor Unit 11.3.2.1Connecting the piping to indoor11.3.2.2Connecting the piping to outdoor 11.3Outdoor Unit11.3.2.4Gas Leak Checking 11.3.2.3Connecting the piping to outdoor multi11.3.3Evacuation of the equipment 11.3.3.1Connect the Cable to the Outdoor Unit 11.3.3.2Piping Insulation12.1.1Internal Setting Temperature 12. Operation Control12.1Basic Function 12.1.2Cooling Operation12.1.4.2Automatic Operation 12.2Indoor Fan Motor Operation12.2.1Basic Rotation Speed rpm 12.4Airflow Direction 12.3Outdoor Fan Motor Operation12.4.1Vertical Airflow 12.6Quiet Operation Heating 12.4.2Horizontal Airflow12.7Powerful Mode Operation 12.8Timer Control12.8.1ON Timer Control 12.8.2OFF Timer Control12.10Indication Panel 13.3.2Temperature Sampling Control 13. Operation Control For Multi Split Connection13.1Cooling operation 13.2Soft Dry Operation13.6Powerful Mode Operation 13.4Automatic Operation13.5Indoor Fan Motor Operation 13.7Auto restart control14.1.1Restart Control Time Delay Safety Control 14.1.4IPM Power Transistor Prevention Control14.Protection Control 14.1Protection Control For All Operations14.2.1Outdoor Air Temperature Control 14.1.5Compressor Overheating Prevention Control14.1.7Low Frequency Protection Control 14.1.8Low Frequency Protection Control14.2.6.1Intake Air Temperature Control 14.2.2Cooling Overload Control14.2.3Freeze Prevention Control 14.2.4Freeze Prevention Control14.2.6.2Outdoor Air Temperature Control 14.2.6.3Overload Protection Control14.2.6.5Cold Draught Prevention Control 14.2.6.6Deice Operation15. Servicing Mode 15.1Auto Off/On Button15.2Remote Control Button 15.2.2RESET RC15.2.3RESET AC 15.2.4TIMER16. Troubleshooting Guide 16.1Refrigeration Cycle SystemPage 16.2Breakdown Self Diagnosis Function 16.2.2To Make a Diagnosis16.3Error Code Table “” – Frequency measured and fan speed fixed Troubleshooting 16.4 Self-diagnosisMethod16.4.1H11 Indoor/Outdoor Abnormal Communication Malfunction Decision Conditions16.4.2H12 Indoor/Outdoor Capacity Rank Mismatched TroubleshootingMalfunction Decision Conditions Malfunction CausedšFaulty connector connection šFaulty sensor šFaulty PCBTroubleshooting Malfunction Decision ConditionsšFaulty connector connection šFaulty sensor šFaulty PCBTroubleshooting Malfunction Decision ConditionsTroubleshooting Malfunction Decision ConditionsMalfunction Caused šCT defective šOutdoor PCB defectiveTroubleshooting Malfunction Decision ConditionsMalfunction Caused šOperation stops due to Hall IC malfunctionšFaulty connector connection šFaulty sensor šFaulty PCBTroubleshooting Malfunction Decision ConditionsšFaulty connector connection šFaulty sensor šFaulty PCBTroubleshooting Malfunction Decision ConditionsšFaulty connector connection šFaulty sensor šFaulty PCBTroubleshooting Malfunction Decision ConditionsšFaulty connector connection šFaulty sensor šFaulty PCBTroubleshooting Malfunction Decision ConditionsšFaulty connector connection šFaulty sensor šFaulty PCBTroubleshooting Malfunction Decision ConditionsTroubleshooting Malfunction Decision ConditionsMalfunction Caused šWrong models interconnected16.4.13 H36 Outdoor Gas Pipe Sensor Abnormality šFaulty connector connection šFaulty sensoršFaulty PCB TroubleshootingšFaulty connector connection šFaulty sensor šFaulty PCBTroubleshooting Malfunction Decision ConditionsTroubleshooting Malfunction Decision ConditionsMalfunction Caused šOperation stops due to Hall IC malfunction16.4.16 H98 Indoor High Pressure Protection TroubleshootingMalfunction Decision Conditions Malfunction CausedTroubleshooting Malfunction Decision ConditionsMalfunction Caused šClogged air filter of the indoor unitšFaulty connector connection šFaulty indoor pipe temperature sensoršFaulty indoor main PCB TroubleshootingRemark TroubleshootingMalfunction Decision Conditions Malfunction Caused16.4.20 F90 Power Factor Correction Protection TroubleshootingMalfunction Decision Conditions Malfunction Caused16.4.21F91 Refrigeration Cycle Abnormality TroubleshootingMalfunction Decision Conditions Malfunction Caused16.4.22F93 Compressor Rotation Failure TroubleshootingMalfunction Decision Conditions Malfunction Caused16.4.23F95 Cooling High Pressure Abnormality TroubleshootingMalfunction Decision Conditions Malfunction Caused16.4.24F96 IPM Overheating TroubleshootingMalfunction Decision Conditions Malfunction Caused16.4.25F97 Compressor Overheating TroubleshootingMalfunction Decision Conditions Malfunction Caused16.4.26F98 Input Over Current Detection TroubleshootingMalfunction Decision Conditions Malfunction Caused16.4.27F99 Output Over Current Detection TroubleshootingMalfunction Decision Conditions Malfunction Caused17.1.1.1To remove power electronic controller 17. Disassembly and Assembly Instructions17.1.1To remove front grille 17.1.1.2To remove discharge grille 17.1.1.3To remove control board Page 18.1Operation Characteristics 18. Technical Data18.1.1CS-E9NK CU-E9NK šPiping Length Characteristic Cooling Room temperature81F DBT, 66F WBT Operation conditionšHeating Characteristic Room temperature68F DBT Operation conditionšPiping Length Characteristic Heating Room temperature68F DBT Operation condition18.1.2CS-E12NK CU-E12NK šCooling CharacteristicRoom temperature 81F DBT, 66F WBTšPiping Length Characteristic Cooling Room temperature81F DBT, 66F WBT Operation conditionšHeating Characteristic Room temperature68F DBT Operation conditionšPiping Length Characteristic Heating Room temperature68F DBT Operation condition19. Exploded View and Replacement Parts List 19.1Indoor UnitšAll parts are supplied from PHAAM, Malaysia Vendor Code: 19.2Outdoor Unit REF. NO PART NAME & DESCRIPTIONCU-E9NKUA CU-E12NKUA